Displaying 20 results from an estimated 200 matches similar to: "How to use Lines function to draw the error bars?"
2012 Oct 03
2
Error in if (any(ch)) { : missing value where TRUE/FALSE needed
Can someone please help with the error message below?
thanks!
Start: AIC=-Inf
value ~ 1 + Core_CPI__ + GDP_change + Unemployment + housing +
interest + S_P + d1 + d2 + d3
Error in if (any(ch)) { : missing value where TRUE/FALSE needed
In addition: Warning message:
attempting model selection on an essentially perfect fit is nonsense
2012 Oct 03
1
stepAIC in R
My stepAIC function works for one set of data but not another....one set
of data shows the steps of eliminating variables, versus another set of
data doesn't throw away any variables.
Can anyone please explain why? Thanks
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2012 Oct 03
1
will 9 data points work for a regression in R?
See error message below: can someone please help with this? Thanks!
Residuals:
ALL 9 residuals are 0: no residual degrees of freedom!
Residual standard error: NaN on 0 degrees of freedom
Multiple R-squared: 1, Adjusted R-squared: NaN
F-statistic: NaN on 8 and 0 DF, p-value: NA
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2012 Nov 04
1
Fw: 95% Q-Q Plot error message
Can someone please help with the below - thanks!
Warning messages:
1: Not plotting observations with leverage one:
7
2: Not plotting observations with leverage one:
7
> print(qqPlot(fit),envelop=.95);
Error in model.frame.default(formula = Y ~ X - 1, drop.unused.levels =
TRUE) :
variable lengths differ (found for 'X')
In addition: Warning message:
In matrix(yhat, n, reps) :
data
2012 Nov 04
1
95% Q-Q Plot error message
Can someone please help with the error message below?
Warning messages:
1: Not plotting observations with leverage one:
7
2: Not plotting observations with leverage one:
7
> print(qqPlot(fit),envelop=.95);
Error in model.frame.default(formula = Y ~ X - 1, drop.unused.levels =
TRUE) :
variable lengths differ (found for 'X')
In addition: Warning message:
In matrix(yhat, n, reps) :
2012 Nov 29
1
worldmap_region/country problem
Dear R community,
I'm trying to graphically illustrate my data with a worlmap.
Unfortunately, my data is partly on country basis and partly on regional
basis (e.g. certain African countries are aggregated to one region). I am
using the package rwoldmap.
The data on country basis can be mapped, but our defined regions cannot be
identified in R. Therefore, all the countries in these
2012 Sep 21
2
Inclusion of a countdown tool of remaining calculation time possible?
Dear All,
We are currently working with very large datasets which even in R require
a lot of calculation time. Is there an option of including a function/
tool or something alike which shows the remaining time of calculation?
Just to see whether there is any progress or whether anything has crashed
and to get a feeling whether we have to wait for 5 min or 30min...
Any help is greatly
2012 Oct 11
2
Options to extend memory limit
Dear All,
at the moment I am using R for calculations of large databases.
Unfortunately, R only manages to complete certain operations at some
times, and not at others. I usually get the error message "cannot allocate
vector of size XX"
I am using the 64-bit version with Windows 7. While my computer has 8 RAM,
I do have a feeling that R cannot use all of it.
Searching online, I
2012 Oct 09
1
why does R stepAIC keep unsignificant variables?
Ran a bunch of variables in R and the final result of StepAIC is as below:
Why are the first 5 variables kept in the stepwise result?? Are the last
4 variables finally chosen after Stepwise? Thanks
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) 1.315e-01 2.687e-01 0.490 0.63611
Core_CPI__ 1.290e-02 7.496e-03 1.721 0.11927
GDP_change -3.482e-03 2.075e-03 -1.678 0.12767
2012 Oct 04
1
can stepAIC be customized to exclude coefficients with p-value less than certain values?
For example, if coefficient's p-value is less than 0.1 I want the stepwise
to automatically drop that variable. Can the stepAIC be customized to do
that? SAS seems to be able to customized stepwise function with p-value
or cooks'd.
thanks!
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2012 Jul 10
1
outer() or some other function for regression prediction with 2 IVs
Hi there, I'm trying to prep some data for a persp() surface plot
representing the predictions from a regression with two inddependent
variables. The regression model "m3" has an intercept, 2 linear terms,
and 2 squared terms. The coefficients are given by coef(m3).
My approach to generating the predictions for a range of each of my IVs,
"s" and "d" was
2012 Jul 02
3
carpet plots
Hi all,
I wonder why there is so little software for carpet plots (german:
Rasterdiagramm) (Three dimensional plot (x, y, z), the 3rd dimension
(z) symbolized by colourgradients). Besides from one or the other non
free software I only found an OpenOffice macro, a combination of
Gnuplot and Excel (an Excel macro calling gnuplot)
(http://www.johannes-hopf.de/2009/12/carpet-plot-version-1-3/9 and
2013 Mar 01
3
interactive visualizations - anyone use SVGAnnotation?
Hi all:I found some great demonstrations of interactive presentation graphics generated in R with the SVGAnnotation package, here:http://www.omegahat.org/SVGAnnotation/http://www.omegahat.org/SVGAnnotation/SVGAnnotationPaper/SVGAnnotationPaper.htmlI tried to install the package available at that website (it's not on CRAN) and am getting some pretty uninformative errors (see below). My best
2004 Aug 06
4
Re: Compiling ices
----- Original Message -----
From: Karl Heyes <karl@pts.tele2.co.uk>
To: <icecast@xiph.org>
Sent: Friday, January 31, 2003 5:29 PM
Subject: Re: [icecast] Re: Compiling ices
<p>> On Fri, 2003-01-31 at 06:39, Marc Remijn wrote:
> ...
>
> > Kernel output:
> >
> > invalid operand: 0000
> > CPU: 0
> > EIP: 0010:[<d08e25b1>]
2007 Feb 23
2
Extracting a subset from a dataframe
Good day everyone,
Can anyone suggest an effective method to solve
the following problem:
I have 2 dataframes D1 and D2 as follows:
D1:
dates ws wc pwc
2005-10-19:12:00 10.8 80 81
2005-10-20:12:00 12.3 5 15
2005-10-21:15:00 12.3 3 15
2005-10-22:15:00 11.3 13 95
2005-10-23:12:00 12.3 13 2
2005-10-24:15:00 10.3 2 95
2005-10-25:15:00 10.3 2 2
D2:
2008 Nov 19
2
ggplot2; dot plot, jitter, and error bars
With this data
x <- c(0,0,1,1,2,2)
y <- c(5,6,4,3,2,6)
lwr <- y-1
upr <- y+1
xlab <- c("Low","Low","Med","Med","High","High")
mydata <- data.frame(x,xlab,y,lwr,upr)
I would like to make a dot plot and use lwr and upr as error bars.
Above 0=Low. I would like there to be
some space between the 5 and the 6 corresponding
2012 Oct 08
0
time series data failing ncv test
For a set of data showing seasonality (related to the 4th quarter), ncv
test in R shows p-value of 0.008 which rejects the null hypothesis of
constant-variance. How to apply White's standard error in R?
thanks
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The information transmitted, including any attachments, is intended only for the person or entity to
2012 Nov 04
0
Q-Q Plot error message
Can someone please help with the error message below -- thanks!
Warning messages:
1: Not plotting observations with leverage one:
7
2: Not plotting observations with leverage one:
7
> print(qqPlot(fit),envelop=.95);
Error in model.frame.default(formula = Y ~ X - 1, drop.unused.levels =
TRUE) :
variable lengths differ (found for 'X')
In addition: Warning message:
In matrix(yhat, n,
2012 Oct 08
0
time series data failing non-constant variance test
For a set of data showing seasonality (related to the 4th quarter),
ncv
test shows p-value of 0.008 which rejects the null hypothesis of
constant-variance. Currently a linear LM relationship is being
applied to
the data.
Should white's error be used to correct the non-constant variance? Are
the p-values of the coefficients unreliable?
thanks
2011 Apr 03
1
style question
Hi everyone,
I am trying to build a table putting standard errors horizontally. I
haven't been able to do it.
library(memisc)
berkeley <- aggregate(Table(Admit,Freq)~.,data=UCBAdmissions)
berk0 <- glm(cbind(Admitted,Rejected)~1,data=berkeley,family="binomial")
berk1 <-
glm(cbind(Admitted,Rejected)~Gender,data=berkeley,family="binomial")
berk2 <-